Brown Fused Alumina with Middle Temperature Treatment

Brown Fused Alumina with MiddleTemperature Treatment

This kind of Brown Fused Alumina grains is calcined at the high temperature, and with the anneal treatment.It is characterized by very low coefficient of linear expansion,very good hydrophilicity, good toughness and high hardness, producing the sintered grinding tools that is characterized by deep blue color after firing, without resillage, without rust and so on. So our this kind of product increase the precision and grinding abilityof the grinding tools in the using course. Brown Fused Alumina with middletemperature treatment is applicable to make high quality bonded abrasives.

Chemical Composition:

Purpose	Specification		Chemical composition(%)				Magnetic material content(%)
			Al2O3	Fe2O3	SiO2	TiO2
For abrasive	F	4#—80#
		90#—150#
		180#—240#	0Max

Physical Properties
Color	Cambridge Blue
Crystal Form	Alpha-alumina trigonal system
Hardness	9.0 Mohs scale
Melting Temperature	About 2050 ℃
Maximum Use Temperature	1800℃
True Density(g/cm3)	≥3.90
Magnetic Material	82%

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